Struct script_traits::InitialScriptState

pub struct InitialScriptState {

    pub id: PipelineId,
    pub parent_info: Option<PipelineId>,
    pub browsing_context_id: BrowsingContextId,
    pub top_level_browsing_context_id: TopLevelBrowsingContextId,
    pub opener: Option<BrowsingContextId>,
    pub inherited_secure_context: Option<bool>,
    pub control_chan: IpcSender<ConstellationControlMsg>,
    pub control_port: IpcReceiver<ConstellationControlMsg>,
    pub script_to_constellation_chan: ScriptToConstellationChan,
    pub background_hang_monitor_register: Box<dyn BackgroundHangMonitorRegister>,
    pub layout_to_constellation_chan: IpcSender<LayoutMsg>,
    pub scheduler_chan: IpcSender<TimerSchedulerMsg>,
    pub resource_threads: ResourceThreads,
    pub bluetooth_thread: IpcSender<BluetoothRequest>,
    pub image_cache: Arc<dyn ImageCache>,
    pub time_profiler_chan: ProfilerChan,
    pub mem_profiler_chan: ProfilerChan,
    pub devtools_chan: Option<IpcSender<ScriptToDevtoolsControlMsg>>,
    pub window_size: WindowSizeData,
    pub pipeline_namespace_id: PipelineNamespaceId,
    pub content_process_shutdown_chan: Sender<()>,
    pub webgl_chan: Option<WebGLPipeline>,
    pub webxr_registry: Registry,
    pub webrender_document: DocumentId,
    pub webrender_api_sender: WebrenderIpcSender,
    pub player_context: WindowGLContext,
}

Data needed to construct a script thread.

NB: DO NOT add any Senders or Receivers here! pcwalton will have to rewrite your code if you do! Use IPC senders and receivers instead.

Fields

id: PipelineId

The ID of the pipeline with which this script thread is associated.

parent_info: Option<PipelineId>

The subpage ID of this pipeline to create in its pipeline parent. If None, this is the root.

browsing_context_id: BrowsingContextId

The ID of the browsing context this script is part of.

top_level_browsing_context_id: TopLevelBrowsingContextId

The ID of the top-level browsing context this script is part of.

opener: Option<BrowsingContextId>

The ID of the opener, if any.

inherited_secure_context: Option<bool>

Loading into a Secure Context

control_chan: IpcSender<ConstellationControlMsg>

A channel with which messages can be sent to us (the script thread).

control_port: IpcReceiver<ConstellationControlMsg>

A port on which messages sent by the constellation to script can be received.

script_to_constellation_chan: ScriptToConstellationChan

A channel on which messages can be sent to the constellation from script.

background_hang_monitor_register: Box<dyn BackgroundHangMonitorRegister>

A handle to register script-(and associated layout-)threads for hang monitoring.

layout_to_constellation_chan: IpcSender<LayoutMsg>

A sender layout to communicate to the constellation.

scheduler_chan: IpcSender<TimerSchedulerMsg>

A channel to schedule timer events.

resource_threads: ResourceThreads

A channel to the resource manager thread.

bluetooth_thread: IpcSender<BluetoothRequest>

A channel to the bluetooth thread.

image_cache: Arc<dyn ImageCache>

The image cache for this script thread.

time_profiler_chan: ProfilerChan

A channel to the time profiler thread.

mem_profiler_chan: ProfilerChan

A channel to the memory profiler thread.

devtools_chan: Option<IpcSender<ScriptToDevtoolsControlMsg>>

A channel to the developer tools, if applicable.

window_size: WindowSizeData

Information about the initial window size.

pipeline_namespace_id: PipelineNamespaceId

The ID of the pipeline namespace for this script thread.

content_process_shutdown_chan: Sender<()>

A ping will be sent on this channel once the script thread shuts down.

webgl_chan: Option<WebGLPipeline>

A channel to the WebGL thread used in this pipeline.

webxr_registry: Registry

The XR device registry

webrender_document: DocumentId

The Webrender document ID associated with this thread.

webrender_api_sender: WebrenderIpcSender

FIXME(victor): The Webrender API sender in this constellation’s pipeline

player_context: WindowGLContext

Application window’s GL Context for Media player